4 layers97.8 × 99.6 mm Stepper Module, the printed circuit board in 3D

Stepper Module

Smart_Stepper_Module

Size: 97.8 × 99.6 mm
Copper layers: 4
Thickness: 1.6 mm
Parts: 171
Nets: 158
Pads: 671
Tracks, vias: 1,763, 213
Pours: 27
Routed: Yes
KiCad: KiCad 7 (file 20221018)
Created: 3 Jul 2024
Updated: 29 May 2026

Overview

Stepper Module is an open-source printed circuit board by McReeii, from the McReeii/Stepper-Module repository on GitHub, published under the MIT licence. It is a 4-layer board of 97.8 × 99.6 mm with 171 parts on 158 nets, routed with 1,763 tracks and 213 vias.

It is built around the ESP-12F, ESP32-WROOM-32D and LM2596S-ADJ, with the AMS1117-3.3, SS14 and SS34 among its other parts. Its parts include 35 resistors, 31 capacitors, 12 switches, 11 diodes and 10 connectors. It belongs with the robots and motor control boards and the ESP32, ESP8266, RP2040 and RISC-V boards of this library.

Main components

README

README.md

Stepper-Module

Smart_Stepper_Module

Parts

171

Qty	Value	Footprint	References
20	100nf	Capacitor_SMD:C_0603_1608Metric	C2, C3, C10, C12, C15, C17, C18, C19, C22, C23, C24, C25, C26, C27, C28, C29 +4
8	1KR	Resistor_SMD:R_0805_2012Metric	R9, R14, R15, R16, R17, R18, R23, R27
8	MountingHole	MountingHole:MountingHole_5mm	H1, H2, H3, H4, H5, H6, H7, H8
7	SolderJumper_2_Open	Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm	CS1, JP2, JP7, JP8, MISO1, MOSI1, SCK1
5	20K	Resistor_SMD:R_0603_1608Metric	R1, R2, R3, R4, R6
4	4.7K	Resistor_SMD:R_0805_2012Metric	R20, R22, R24, R25
4	5.1K	Resistor_SMD:R_0805_2012Metric	R7, R8, R36, R37
3	10KR	Resistor_SMD:R_0805_2012Metric	R29, R30, R31
3	1uf	Capacitor_SMD:C_0805_2012Metric	C16, C20, C21
2	0R11	Resistor_SMD:R_0805_2012Metric	R12, R13
2	15pf	Capacitor_SMD:C_1206_3216Metric	C13, C14
2	1k	Resistor_SMD:R_0805_2012Metric	R5, R21
2	27R	Resistor_SMD:R_0805_2012Metric	R33, R34
2	C_Polarized_Small	Capacitor_Tantalum_SMD:CP_EIA-3528-21_Kemet-B	C30, C31
2	Conn_02x05_Odd_Even	Connector_PinSocket_2.54mm:PinSocket_2x05_P2.54mm_Vertical	J12, J13
2	Reset	Button_Switch_SMD:SW_Push_1P1T_XKB_TS-1187A	SW15, SW17
2	SS14	Diode_SMD:D_SMA	D2, D11
2	SS34	Diode_SMD:D_SMA	D3, D10
2	Vref	TestPoint:TestPoint_Pad_1.0x1.0mm	TP3, TP4
1	100R	Resistor_SMD:R_0805_2012Metric	R26
1	100uf	Capacitor_SMD:CP_Elec_8x11.9	C1
1	10K	Resistor_SMD:R_0805_2012Metric	R28
1	12E_Enter	Button_Switch_SMD:SW_Push_1P1T_NO_CK_PTS125Sx43PSMTR	SW14
1	12E_NEXT	Button_Switch_SMD:SW_Push_1P1T_XKB_TS-1187A	SW12
1	12E_PRV	Button_Switch_SMD:SW_Push_1P1T_XKB_TS-1187A	SW13
1	12V Led	LED_SMD:LED_1206_3216Metric	D1
1	12e_BatMonitorIN	TestPoint:TestPoint_Pad_1.0x1.0mm	TP34
1	12e_enter	TestPoint:TestPoint_Pad_1.0x1.0mm	TP37
1	12e_next	TestPoint:TestPoint_Pad_1.0x1.0mm	TP35
1	12e_prv	TestPoint:TestPoint_Pad_1.0x1.0mm	TP36
1	1K	Resistor_SMD:R_0805_2012Metric	R35
1	1u/50v	Capacitor_SMD:C_0805_2012Metric	C9
1	2.0_16P	Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal	J1
1	20K	Potentiometer_SMD:Potentiometer_Bourns_3214J_Horizontal	RV1
1	220uf	Capacitor_SMD:CP_Elec_8x11.9	C7
1	22nf	Capacitor_SMD:C_0603_1608Metric	C11
1	2K	Resistor_SMD:R_0805_2012Metric	R19
1	330R	Resistor_SMD:R_0805_2012Metric	R11
1	47uH	Inductor_SMD:L_12x12mm_H8mm	L1
1	5V-usbout-bms	TestPoint:TestPoint_Pad_1.0x1.0mm	TP5
1	5Vout	TestPoint:TestPoint_Pad_1.0x1.0mm	TP6
1	5v_TMC	TestPoint:TestPoint_Pad_1.0x1.0mm	TP7
1	ADC2	TestPoint:TestPoint_Pad_1.0x1.0mm	T41
1	ADC3	TestPoint:TestPoint_Pad_1.0x1.0mm	T40
1	AMS1117-3.3	Package_TO_SOT_SMD:SOT-223-3_TabPin2	U9
1	BAT	TestPoint:TestPoint_2Pads_Pitch2.54mm_Drill0.8mm	J3
1	BChrg	LED_SMD:LED_1206_3216Metric	D6
1	BFull	LED_SMD:LED_1206_3216Metric	D5
1	BOOTSEL	Button_Switch_SMD:SW_Push_1P1T_XKB_TS-1187A	SW16
1	CS32	Jumper:SolderJumper-3_P1.3mm_Bridged12_Pad1.0x1.5mm_NumberLabels	JP6
1	DIAG	TestPoint:TestPoint_Pad_1.0x1.0mm	TP15
1	DOWN	Button_Switch_SMD:SW_Push_1P1T_NO_CK_PTS125Sx43PSMTR	SW4
1	ESP-12F	RF_Module:ESP-12E	U5
1	ESP12F_PROG	Connector_PinSocket_1.27mm:PinSocket_1x05_P1.27mm_Vertical_SMD_Pin1Left	J5
1	ESP32-WROOM-32D	RF_Module:ESP32-WROOM-32D	locked
1	ESP32_PROG	Connector_PinSocket_1.27mm:PinSocket_1x05_P1.27mm_Vertical_SMD_Pin1Left	J7
1	EXIT	Button_Switch_SMD:SW_Push_1P1T_NO_CK_PTS125Sx43PSMTR	SW6
1	Esp12Led	LED_SMD:LED_1206_3216Metric	D9
1	EspLed	LED_SMD:LED_1206_3216Metric	D7
1	FA-20H-12-10	Crystal:Crystal_SMD_Abracon_ABM10-4Pin_2.5x2.0mm	Y1
1	FRC Conn	Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical	J4
1	GND	TestPoint:TestPoint_Pad_1.0x1.0mm	TP11
1	Hall_in	TestPoint:TestPoint_Pad_1.0x1.0mm	TP23
1	INDEX	TestPoint:TestPoint_Pad_1.0x1.0mm	TP16
1	LM2596S-ADJ	Package_TO_SOT_SMD:TO-263-5_TabPin3	U1
1	Logic Led	LED_SMD:LED_1206_3216Metric	D4
1	MS1	Jumper:SolderJumper-3_P1.3mm_Bridged12_Pad1.0x1.5mm_NumberLabels	JP4
1	MS2	Jumper:SolderJumper-3_P1.3mm_Bridged12_Pad1.0x1.5mm_NumberLabels	JP5
1	NEXT	Button_Switch_SMD:SW_Push_1P1T_NO_CK_PTS125Sx43PSMTR	SW3
1	NEXT_0	Button_Switch_SMD:SW_Push_1P1T_XKB_TS-1187A	SW7
1	OA1	TestPoint:TestPoint_Pad_1.0x1.0mm	TP17
1	OA2	TestPoint:TestPoint_Pad_1.0x1.0mm	TP18
1	OB1	TestPoint:TestPoint_Pad_1.0x1.0mm	TP19
1	OB2	TestPoint:TestPoint_Pad_1.0x1.0mm	TP20
1	OLED	Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical	J11
1	OLED	Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical_SMD_Pin1Right	J8
1	PICO Debug	Connector_PinSocket_1.27mm:PinSocket_1x04_P1.27mm_Vertical_SMD_Pin1Left	J6
1	PLed	LED_SMD:LED_1206_3216Metric	D8
1	PRV	Button_Switch_SMD:SW_Push_1P1T_NO_CK_PTS125Sx43PSMTR	SW2
1	PRV_0	Button_Switch_SMD:SW_Push_1P1T_XKB_TS-1187A	SW8

The 143 most common of 171 parts.

Questions

How big is the Stepper Module PCB?

It measures 97.8 × 99.6 mm and has 4 copper layers, 1.6 mm thick.

What parts does the Stepper Module use?

171 parts, built around the ESP-12F, ESP32-WROOM-32D, LM2596S-ADJ and AMS1117-3.3. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Stepper Module KiCad files?

From the McReeii/Stepper-Module repository on GitHub, at the commit this page was made from: the board is Kicad/Stepper Module.kicad_pcb and its schematic Kicad/Stepper Module.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Stepper Module design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

Category and platform

Robots and motor control ESP32 ESP8266 RP2040 RISC-V

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/mcreeii-stepper-module" title="Stepper Module in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/mcreeii-stepper-module.jpg" alt="Stepper Module" width="1200" height="900">

A picture that opens the board, for a README

[![Stepper Module](https://pcbkit.io/embed/boards/mcreeii-stepper-module.jpg?size=s)](https://pcbkit.io/boards/mcreeii-stepper-module)

Source

Repository: McReeii/Stepper-Module
Board file: Kicad/Stepper Module.kicad_pcb
Commit: b345ce6
Licence: MIT

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